| Library / English Dictionary |
HYPERSOMNIA
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
An inability to stay awake
Classified under:
Nouns denoting stable states of affairs
Hypernyms ("hypersomnia" is a kind of...):
sleep disorder (a disturbance of the normal sleep pattern)
Hyponyms (each of the following is a kind of "hypersomnia"):
catalepsy (a trancelike state with loss of voluntary motion and failure to react to stimuli)
narcolepsy (a sleep disorder characterized by sudden and uncontrollable episodes of deep sleep)
Antonym:
insomnia (an inability to sleep; chronic sleeplessness)
